Glass Blemish; Scratch; Bubbles/Foreign Materials; 446F - Nokia 446PRO Service Manual

8.3. Glass blemish

8.3.1. Scratch

Width Length of single scratch
W>0.05 No limit
0.05<W<0.10 25
0.10<W<0.15 12
0.15<W None allowed

8.3.2. Bubbles/Foreign materials

Bubbles
Average diameter of defects
0.3---0.45
Air blister
(Max. legth 6.0)
(Max. width 0.3)
Foreign material
Apply the face defect standard for blackish defects
Average of diameter
of defects
0.25---0.45
Note: No limit for the defects less than 0.25 mm average diameter
32
Quantity allowed
Within any 70 mm
2
2
Quantity allowed
within any 70 circle
2
Minimum distance
circle
12.7
12.7
Minimum distance
12.7

446F